Journal of Chuxiong Normal University ›› 2022, Vol. 37 ›› Issue (3): 33-44.

• Life Science & Chemistry • Previous Articles     Next Articles

Isolation and Preliminary Identification of Endophytes of Agrimonia pilosa var. nepalensis in Chuxiong

Haiyan Yang1, Jianlin Shi1, Huahong Chen1, Lu Qiu1   

  1. School of Resources, Environment and Chemistry, Chuxiong Normal University,Yunnan Province 675000
  • Received:2020-12-03 Published:2022-06-30
  • Contact: *Lu Qiu (1964–), female, professor. The research interests include molecules and molecular spectroscopy, E-mail:qiulu@cxtc.edu.cn. Tel. 15887756697
  • About author:Haiyan Yang(1979-),female,doctor,associate professor,mainly engaged in plant pathology,plant physiology research. E-mail:haiyanyang@cxtc. edu.cn,Tel. 18287864615

Abstract: 29 endophytes were isolated from healthy plants of wild Agrimonia pilosa var. nepalensis, including 8 strains of bacteria, 10 strains of actinomycetes and 11 strains of fungi. All the bacteria were bacilli and 4 strains produced spores. All actinomycetes belong to Streptomyces sp. . Fungi belong to 4 genera, 7 strains are Fusarium sp., 2 strains are Colletotrichum sp., 1 strain is Penicillium sp., 1 strain is Aspergillus niger. The results of growth characteristics experiment showed that the optimal growth range of all tested strains was 3%~5% NaCl concentration, 6.0~8.0 pH and 20 ℃~35 ℃. The growth temperature range of bacteria was wider than that of actinomycetes. In the experiment of physiological and biochemical characteristics, strain b-3-5-4 used a wide range of carbon and nitrogen sources, while strain b-3-1-6 used a narrow range of carbon and nitrogen sources. The results showed that there were different groups of endophytes in different tissues of Agrimonia pilosa var. nepalensis. This study can provide data for further development of Agrimonia pilosa var. nepalensis.

Key words: Agrimonia pilosa var. nepalensis, endophytes, Growth characteristics, Physical and chemical properties

CLC Number: